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A grade between bituminous coal and anthracite was once known as "steam coal" as it was widely used as a fuel for steam locomotives. In this specialized use, it is sometimes known as "sea coal" in the United States. [72] Small "steam coal", also called dry small steam nuts (DSSN), was used as a fuel for domestic water heating.
Anthracite, also known as hard coal and black coal, is a hard, compact variety of coal that has a submetallic lustre.It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coals.
Coal may also refer to: Particular types of Coal. Anthracite; Bituminous coal; Lignite; Other combustible fuels. Charcoal, a similar solid carbon compound also ...
A doggy, also known as a corporal in the Midlands, was an underground supervisor with responsibility for the haulage men; the role was similar to that of the deputy at the face, and later sometimes included the responsibility of the deputy to test for gas. [18] Downcast, downcast shaft
Coal is also mined today on a large scale by open pit methods wherever the coal strata strike the surface or are relatively shallow. Britain developed the main techniques of underground coal mining from the late 18th century onward, with further progress being driven by 19th-century and early 20th-century progress. [ 1 ]
Coal miners will be better protected from poisonous silica dust that has contributed to the premature deaths of thousands of mine workers from a respiratory ailment commonly known as black lung ...
Harmful byproduct of burning coal for power has been used as construction fill for decades, but no one kept track of where it went. EPA: Cancer risk from coal ash higher than previously revealed ...
Ukraine also has significant reserves of coal; however, most of them are now under the control of Russia in occupied territory. Following is an overview of Ukraine's natural resources that could ...